Least limiting water as a soil indicator in an integrated crop-livestock systems of the Cerrado, Brazil

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dc.contributor.authorTavanti, Renan Francisco Rimoldi [UNESP]
dc.contributor.authorFreddi, Onã da Silva
dc.contributor.authorMarchioro, Vinicius [UNESP]
dc.contributor.authorTavanti, Tauan Rimoldi [UNESP]
dc.contributor.authorGalindo, Fernando [UNESP]
dc.contributor.authorWruck, Flávio Jesus
dc.contributor.authorShiratsuchi, Luciano
dc.contributor.authorBreda, Carlos Cesar
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionFederal University of Mato Grosso (UFMT)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionLouisiana State University
dc.date.accessioned2019-10-06T15:51:13Z
dc.date.available2019-10-06T15:51:13Z
dc.date.issued2019-11-01
dc.description.abstractThe least limiting water range (LLWR) is widely used as an agronomic indicator of soil physical quality, however few studies have reported its spatial variability, mainly in integrated crop-livestock systems (ICL). This study aimed to evaluate the spatial dependence of LLWR and its limits that establish the minimum physical and water restrictions for plant growth in an Oxisol under ICL systems. In addition, to verify correlations between LLWR limits and soil attributes that are commonly used to evaluate the soil compaction state. A georeferenced sampling mesh of 12 ha and 170 randomly distributed points was installed at an experimental station, which specifically studies five ICL systems and a no-tillage system with soybean and maize successions. The soil was sampled in 0.00–0.10 and 0.10–0.20 m layers for determinations of porosity, penetration resistance (PR), bulk density and LLWR. The results showed that LLWR presented spatial dependence and adjusted to the exponential model of semivariance, was positively correlated to macroporosity and total porosity and negatively correlated to bulk density, PR and microporosity. Among the parameters that compose it, the PR curve presented spatial dependence and explained the main changes in soil caused by management systems.en
dc.description.affiliationSão Paulo State University (UNESP)
dc.description.affiliationFederal University of Mato Grosso (UFMT)
dc.description.affiliationEmbrapa Agrossilvipastoril
dc.description.affiliationLouisiana State University, Postal Code 307 M.B. Sturgis Hall
dc.description.affiliationUnespSão Paulo State University (UNESP)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Mato Grosso
dc.identifierhttp://dx.doi.org/10.1016/j.geodrs.2019.e00232
dc.identifier.citationGeoderma Regional, v. 19.
dc.identifier.doi10.1016/j.geodrs.2019.e00232
dc.identifier.issn2352-0094
dc.identifier.scopus2-s2.0-85069908243
dc.identifier.urihttp://hdl.handle.net/11449/187914
dc.language.isoeng
dc.relation.ispartofGeoderma Regional
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectBulk density
dc.subjectOxisol
dc.subjectSoil and water management and conservation
dc.subjectSoil compaction
dc.subjectSoil penetration resistance
dc.titleLeast limiting water as a soil indicator in an integrated crop-livestock systems of the Cerrado, Brazilen
dc.typeArtigo

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